Home / 209,731.62-289,429.20-114,238.08

Finding the Fourth Proportional to 209,731.62, 289,429.20 and 114,238.08

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Solution

The fourth proportional to 209,731.62, 289,429.20 and 114,238.08 is: 157,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,731.62 : 289,429.20 = 114,238.08 : x
  2. Step 2: Convert to fraction form
    209,731.62/289,429.20 = 114,238.08/x
  3. Step 3: Cross multiply
    209,731.62x = 289,429.20 × 114,238.08
  4. Step 4: Simplify right side
    209,731.62x = 33,063,836,103.94
  5. Step 5: Solve for x
    x = 33,063,836,103.94/209,731.62
  6. Step 6: Final answer
    x = 157,648.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.